Home / 3,902.19-5,387.13-2,649.93

Finding the Fourth Proportional to 3,902.19, 5,387.13 and 2,649.93

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Solution

The fourth proportional to 3,902.19, 5,387.13 and 2,649.93 is: 3,658.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.19 : 5,387.13 = 2,649.93 : x
  2. Step 2: Convert to fraction form
    3,902.19/5,387.13 = 2,649.93/x
  3. Step 3: Cross multiply
    3,902.19x = 5,387.13 × 2,649.93
  4. Step 4: Simplify right side
    3,902.19x = 14,275,517.40
  5. Step 5: Solve for x
    x = 14,275,517.40/3,902.19
  6. Step 6: Final answer
    x = 3,658.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.